21 Jan
2018
21 Jan
'18
8:48 p.m.
I seem to remember that at some point early on, we spent some of our
capital budget on buying another 16K bytes for the PDP-11. As I
recall, the deal was that the OS got 8K and users got 8K. I also
recall that that purchase was 20% of our capital budget for the
year...
Doug, did I remember this correctly?
Steve
----- Original Message -----
From: "Doug McIlroy" <doug(a)cs.dartmouth.edu>
To:<tuhs@minnie.tuhs.org>
Cc:
Sent:Sun, 21 Jan 2018 11:51:29 -0500
Subject:[TUHS] Subject: Re: KernelSizesA self-imposed limit of 16K
held in v1, and was quite fullyutilized.Subject:Re: Kernel Sizes
A self-imposed limit of 16K held in v1, and was quite fully utilized.
When the iernel was rewritten in C, the limit (perhaps larger by
then)
influenced the C compiler. More than one optimization was stimulated
by the need to keep the kernel in bounds.
Doug